Richard Pzena acquired 1.55 Million Halliburton shares worth $55.8 Million. That's 0.21% of their equity portfolio (74th largest holding). The first Halliburton trade was made in Q3 2013. Since then Richard Pzena bought shares fifteen more times and sold shares on nineteen occasions. The stake costed the investor $38.6 Million, netting the investor a gain of 45% so far.